| 22101 | PDC Mountaineer LLC | Bridgeport, WV 26330-9665 | Oil & Gas Operator | Dec 2017 |
| 22102 | PDC Permian, Inc. | Midland, TX 79706 | Oil & Gas Operator | Jun 2025 |
| 22103 | PDC-WV-Co Corporation | Denver, CO 80203 | Oil & Gas Operator | Aug 2010 |
| 22104 | Pdeh LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 22105 | PDG Production LLC | Stroud, OK 74079 | Oil & Gas Operator | Mar 2025 |
| 22106 | PDH Enterprises | Pittsburg, TX 75686 | Oil & Gas Operator | Apr 2019 |
| 22107 | PDQ Oil & Gas LLC | The Plains, OH 45780 | Oil & Gas Operator | Dec 2022 |
| 22108 | PDS Resources LLC | | Oil & Gas Operator | Apr 2025 |
| 22109 | Pe - Osage, LLC | | Oil Operator | Mar 2025 |
| 22110 | Pe - Texas, LLC | Oklahoma City, OK 73113 | Oil Operator | Jun 2025 |
| 22111 | Peabody Natural Gas LLC | Gillette, WY 82718 | Oil & Gas Operator | Apr 2025 |
| 22112 | Peach Creek Operating Co, LLC | Houston, TX 77007 | Oil & Gas Operator | Jun 2025 |
| 22113 | Peach, Dennis L | Hartford, KY 42347 | Oil Operator | Dec 2023 |
| 22114 | Peachridge Energy Operating LLC | Houston, TX 77024-2246 | Oil & Gas Operator | Apr 2025 |
| 22115 | Peachtree Production Co. | | Oil & Gas Operator | Mar 1981 |
| 22116 | Peacock, Scott | Edmonton, KY 42129 | Oil Operator | Dec 2023 |
| 22117 | Peak Energy Co Inc | | Oil & Gas Operator | Mar 1985 |
| 22118 | Peak Energy Corporation | Plano, TX 75093 | Oil & Gas Operator | Oct 2018 |
| 22119 | Peak Energy LLC | Coffeyville, KS 67337 | Oil & Gas Operator | Dec 2024 |
| 22120 | Peak Energy Operating #2, LLC | Durango, CO 81301 | Oil & Gas Operator | Jun 2006 |
| 22121 | Peak Flow Operating&Drilling LP | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2011 |
| 22122 | Peak Natural Gas Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Sep 2010 |
| 22123 | Peak Nebraska Acquisitions, LLC | | Oil Operator | Dec 2010 |
| 22124 | Peak Oil Company LLC | Branson West, MO 65737 | Oil Operator | Dec 2009 |
| 22125 | Peak Operating Co. | | Oil & Gas Operator | Jul 2024 |
| 22126 | Peak Operating LLC | Oklahoma City, OK 73157 | Oil & Gas Operator | Feb 2025 |
| 22127 | Peak Operating Of Texas, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2005 |
| 22128 | Peak Operating Oil & Gas LLC | Wichita, KS 67226-3375 | Oil & Gas Operator | Mar 2025 |
| 22129 | Peak Operator LLC | | Oil & Gas Operator | Mar 2025 |
| 22130 | Peak Pipeline Company | Plano, TX 75093 | Oil & Gas Operator | Oct 2007 |
| 22131 | Peak Powder River Resources LLC | Durango, CO 81301 | Oil & Gas Operator | Mar 2025 |
| 22132 | Peak Texas Resources, LLC | Durango, CO 81301 | Oil & Gas Operator | Mar 2017 |
| 22133 | Peake Operating Company | | Oil & Gas Operator | Dec 1999 |
| 22134 | Peakview Oil Company LLC | Denver, CO 80202 | Gas Operator | Apr 2025 |
| 22135 | Peakview Operating Company, LLC | | Oil & Gas Operator | Apr 2025 |
| 22136 | Pearce Leonard | Manderson, WY 82432 | Oil Operator | Dec 1999 |
| 22137 | Pearce Mary | | Oil Operator | Dec 1999 |
| 22138 | Pearce Oil Company | Manderson, WY 82432 | Oil Operator | Jun 1999 |
| 22139 | Pearce Trust And Blair | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 22140 | Pearce, Roy F., Jr. | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 22141 | Pearl Energy, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Apr 2002 |
| 22142 | Pearl Oil Company | Nichols Hills, OK 73120-1408 | Oil & Gas Operator | Nov 2023 |
| 22143 | Pearl Petroleum Inc | Lawton, OK 73501-5821 | Oil & Gas Operator | Jan 2014 |
| 22144 | Pearl Resources Inc. | | Oil & Gas Operator | Jul 1990 |
| 22145 | Pearl Resources Operating Co.LLC | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 22146 | Pearl, Bill H. Productions, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Jun 2025 |
| 22147 | Pearsall Jarrett | Delaware, OK 74027-1065 | Oil Operator | Mar 2025 |
| 22148 | Pearsall Partners | Dallas, TX 75201 | Oil & Gas Operator | Mar 1993 |
| 22149 | Pearson, A. K. | Amarillo, TX 79114 | Oil & Gas Operator | Aug 2023 |
| 22150 | Pearson, Lee Roy III | Eastland, TX 76448 | Oil & Gas Operator | Jun 2025 |
| 22151 | Pearson, Lee Roy, Jr. | Eastland, TX 76448 | Oil & Gas Operator | Nov 1997 |
| 22152 | Pease George W Jr | Fairfax, OK 74637 | Oil & Gas Operator | Mar 1998 |
| 22153 | Pease Oil & Gas Company | Grand Junction, CO 81506 | Oil & Gas Operator | May 2000 |
| 22154 | Pease, Willard H | Grand Junction, CO 81502 | Gas Operator | May 1995 |
| 22155 | Peba Oil & Gas Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Jun 2015 |
| 22156 | Peba Oil & Gas, Inc. | Nocona, TX 76255 | Oil & Gas Operator | Jun 2025 |
| 22157 | Pecanosa Oil & Cattle Co. | New Braunfels, TX 78132 | Gas Operator | May 2013 |
| 22158 | Peccary Corporation | Lubbock, TX 79453 | Oil & Gas Operator | Aug 2003 |
| 22159 | Pech Oil Co., No. 2 | Midland, TX 79702 | Oil & Gas Operator | Apr 2013 |
| 22160 | Pech Oil Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2013 |
| 22161 | Peckenpaugh Farms | Farnsworth, TX 79033 | Oil & Gas Operator | Jun 2025 |
| 22162 | Peco Foods, Inc. | | Oil & Gas Operator | Mar 2025 |
| 22163 | Pecora Enterprises | Bradford, PA 16701-1026 | Oil & Gas Operator | Dec 1999 |
| 22164 | Pecos Country Operating Inc. | N Richlnd HLS, TX 76182 | Oil Operator | Jun 2025 |
| 22165 | Pecos Crude LLC | Sugar Land, TX 77479 | Oil Operator | Jun 2025 |
| 22166 | Pecos Development Corporation | San Antonio, TX 78209 | Oil Operator | Aug 1988 |
| 22167 | Pecos Operating Company, LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2021 |
| 22168 | Pecos Operators, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 22169 | Pecos Petroleum Company | Houston, TX 77057 | Oil & Gas Operator | Oct 1999 |
| 22170 | Pecos Production Company | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2005 |
| 22171 | Pecos River Exploration, LLC | Allen, TX 75013 | Oil & Gas Operator | Jun 2025 |
| 22172 | Pecos River Op Inc | Roswell, NM 88202 | Oil & Gas Operator | Dec 2020 |
| 22173 | Pecos Valley Management Co. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2008 |
| 22174 | Pecos Western Corporation | | Gas Operator | Feb 1992 |
| 22175 | Pecuch, Robert D. & Patricia B. | Cassadaga, NY 14718 | Gas Operator | Dec 2023 |
| 22176 | Ped Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 22177 | Pedco Inc | | Oil & Gas Operator | Nov 1997 |
| 22178 | Pedco Resources Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2008 |
| 22179 | Pedeco, Inc. | Casper, WY 82601 | Oil & Gas Operator | Mar 2008 |
| 22180 | Peden Energy | Lubbock, TX 79424 | Oil & Gas Operator | Dec 2004 |
| 22181 | Peden Energy, Inc. | Wolfforth, TX 79382 | Oil & Gas Operator | Jun 2025 |
| 22182 | Peden, Marshell | Archer City, TX 76351 | Oil & Gas Operator | Jun 2025 |
| 22183 | Peden, Oren Inc. | Levelland, TX 79336 | Oil & Gas Operator | May 2001 |
| 22184 | Pedernales Petroleum Op, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2025 |
| 22185 | Pedernales Petroleum Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 22186 | Pedernales Production, LP | Houston, TX 77057 | Oil & Gas Operator | Mar 2022 |
| 22187 | Pedestal Oil Company Inc | Oklahoma City, OK 73101-1522 | Oil & Gas Operator | May 2019 |
| 22188 | Pedgeco Inc | Cleveland, OH 44115 | Oil & Gas Operator | Dec 1984 |
| 22189 | Pedocs Inc | Bixby, OK 74008 | Oil & Gas Operator | Mar 2025 |
| 22190 | Pedry J J | | Oil Operator | Sep 1989 |
| 22191 | Peery, J. W. | Midland, TX 79701 | Oil & Gas Operator | Aug 2007 |
| 22192 | Peewe Oil Co. | | Oil Operator | Feb 2025 |
| 22193 | Pefley Oil & Gas, Inc. | Colden, NY 14033 | Gas Operator | Dec 2023 |
| 22194 | Pegasi Energy Resources Corp | Tyler, TX 75710 | Oil & Gas Operator | Jul 2007 |
| 22195 | Pegasi Operating Inc. | Jefferson, TX 75657 | Oil & Gas Operator | Jun 2025 |
| 22196 | Pegasus Energy | Oklahoma City, OK 73162 | Oil & Gas Operator | Apr 1997 |
| 22197 | Pegasus Energy Corporation | Oklahoma City, OK 73162 | Oil & Gas Operator | Mar 2015 |
| 22198 | Pegasus Operating, Inc. | Coldspring, TX 77331 | Oil & Gas Operator | Jun 2025 |
| 22199 | Pegasus P And A LLC | Kilgore, TX 75663 | Oil Operator | Jun 2025 |
| 22200 | Pegasus Petroleum Corporation | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Jun 2025 |